Python Program To Convert Decimal To Binary

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Code For Python Program To Convert Decimal To Binary

def decimal_to_binary(num):
    binary = bin(num)[2:]
    return binary

# Test the function
print(decimal_to_binary(10))

Output

1010

Explanation

The program defines a function decimal_to_binary that takes an integer as an argument (num). Inside the function, it uses the built-in bin() function to convert the decimal number to its binary representation.

The bin() function returns a string representation of the binary number, with the prefix ‘0b’, so we slice the string to remove this prefix. The slicing is done by [2:]

Another way is to use a while loop to keep dividing the number by 2 and storing the remainder, then adding the remainder to a binary string, for each division.

def decimal_to_binary(num):
    if num == 0:
        return "0"
    binary = ""
    while num > 0:
        binary = str(num % 2) + binary
        num = num // 2
    return binary

# Test the function
print(decimal_to_binary(10))